HSNOCOP 61 Rotationally Moulded Polyethylene Storage Tanks for Non Flammable Hazardous Substances 

AS/NZS 4766:2006 Polyethylene storage tanks for water and chemicals

CURRENT
1.1 Scope
The purpose of this approved code of practice (Code) is to adopt the current requirements of AS/NZS 4766, with additional requirements for the design, manufacture and installation of above ground tanks constructed using the rotational moulding process and which are intended to contain non-flammable hazardous substances with class 5, 6, 8 and 9 classifications.
1.2
In addition to the limitations stated in Section 1.2 of AS/NZS 4766, the following additional limitations apply to tanks designed, manufactured and installed using this code...
1.4
AS/NZS 4766:2006 means the standard Polyethylene storage tanks for water and chemicals
2.5
Minimum material properties are listed below with reference also made to Paragraph 6.1 of AS/NZS 4766 in this regard....
3.0
In addition to the requirements of applicable local ordinances (In New Zealand, clause 77 (b) of Schedule 8 to the Hazardous Substances (dangerous Goods and Scheduled Toxic Substances) Transfer Notice 2044 (as amended)) and any marking requirements from AS/NZS 4766 – clause 14, the permanent markings on the outside of the tank are to include...

AS/NZS 1170.1:2002 Structural design actions - Part 1: Permanent, imposed and other actions

CURRENT
1.4
AS/NZS 1170.1:2002 means the standard Structural design actions – Part 1: Permanent, imposed and other actions
2.1(iii)
If it is found that roof loading is required, then the designer shall introduce additional loads as prescribed by AS/NZS 1170.1 with additional load combinations as per AS/NZS 1170.0.
6.3
In areas where the potential risk of impact is medium or high, the tank is to be protected by a protection barrier with design loads based on AS/NZS 1170.1. Practical solutions include reinforced concrete walls and light gauge steelwork "W-Beam" roadside crash barriers. A structural design certificate for the barrier shall accompany the barrier installation to ensure that the barrier has been designed in a manner consistent with AS/NZS 1170.1.

AS/NZS 1170.2:2011 Structural design actions - Part 2: Wind actions

CURRENT
1.4
AS/NZS 1170.2-2011 means the standard Structural design actions – Part 2: Wind actions
2.1(iv)
The basis of the tank design is for the application of long term loads resulting from hydrostatic pressure from the stored liquid as well as transient environmental loads such as wind loads (refer to in AS/NZS 1170.2) and earthquake loads.
2.2
The designer is referred to AS/NZS 1170.2 for derivation of applied wind loads.

AS/NZS ISO 9001:2008 Quality management systems - Requirements

CURRENT
1.4
AS/NZS ISO 9001: 2008 means the standard Quality Management Systems - Requirements
2.6.3
The wall thickness verification shall be undertaken using methods defined in AS/NZS ISO 9001.
5.1
Fabricators shall ensure they have a quality management system compliant with AS/NZS ISO 9001 in place.

NZS 1170.5:2004 Structural design actions - Part 5: Earthquake actions - New Zealand

CURRENT
1.4
NZS 1170.5 means the standard Structural design actions, Part 5: Earthquake actions – New Zealand
2.1(iv)
Earthquake design loads in New Zealand are to be determined using... ...and NZS 1170.5.
2.2
For New Zealand, the designer shall use the requirements of... ...and NZS 1170.5.

NZS 3101.1&2:2006 Concrete structures Standard

CURRENT
1.4
NZS 3101:2006 means the standard Concrete Structures Standard Parts one and two.
2.1(i)
Where the tank is supported by either a reinforced concrete foundation slab designed in accordance with AS 3600 or NZS 3101 overlying stable foundation material, the tank can be designed on that basis.

AS/NZS 1170.0:2002 Structural design actions - Part 0: General principles

CURRENT
1.4
AS/NZS 1170.0:2002 means the standard Structural design actions – Part 0: General principles
2.1(iii)
If it is found that roof loading is required, then the designer shall introduce additional loads as prescribed by AS/NZS 1170.1 with additional load combinations as per AS/NZS 1170.0.
2.3
As specified in AS/NZS 1170.0, the ultimate limit state design load case combinations to be examined shall be (but not limited to) the following... ...Should this not be the case then the load factor should be increased to 1.5 (refer Clause 4.2.3 of AS/NZS1170.0).
2.4
Stability of the structure shall be maintained in accordance with Section 7.2.1 of AS/NZS1170.0 via either (but not limited to) one of the following methods...

AS/NZS 1170.1:2002 Structural design actions - Part 1: Permanent, imposed and other actions

CURRENT
1.4
AS/NZS 1170.1:2002 means the standard Structural design actions – Part 1: Permanent, imposed and other actions
2.1(iii)
If it is found that roof loading is required, then the designer shall introduce additional loads as prescribed by AS/NZS 1170.1 with additional load combinations as per AS/NZS 1170.0.
6.3
In areas where the potential risk of impact is medium or high, the tank is to be protected by a protection barrier with design loads based on AS/NZS 1170.1. Practical solutions include reinforced concrete walls and light gauge steelwork "W-Beam" roadside crash barriers. A structural design certificate for the barrier shall accompany the barrier installation to ensure that the barrier has been designed in a manner consistent with AS/NZS 1170.1.

AS/NZS 1170.0:2002 Structural design actions - Part 0: General principles

CURRENT
1.4
AS/NZS 1170.0:2002 means the standard Structural design actions – Part 0: General principles
2.1(iii)
If it is found that roof loading is required, then the designer shall introduce additional loads as prescribed by AS/NZS 1170.1 with additional load combinations as per AS/NZS 1170.0.
2.3
As specified in AS/NZS 1170.0, the ultimate limit state design load case combinations to be examined shall be (but not limited to) the following... ...Should this not be the case then the load factor should be increased to 1.5 (refer Clause 4.2.3 of AS/NZS1170.0).
2.4
Stability of the structure shall be maintained in accordance with Section 7.2.1 of AS/NZS1170.0 via either (but not limited to) one of the following methods...

AS/NZS ISO 9001:2008 Quality management systems - Requirements

CURRENT
1.4
AS/NZS ISO 9001: 2008 means the standard Quality Management Systems - Requirements
2.6.3
The wall thickness verification shall be undertaken using methods defined in AS/NZS ISO 9001.
5.1
Fabricators shall ensure they have a quality management system compliant with AS/NZS ISO 9001 in place.